4. A playground merry-go-round has a diameter of 2.1 m and a mass of 90 kg. It can be treated as a disk which rotates about the center. A. Sketch the...
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4. A playground merry-go-round has a diameter of 2.1 m and a mass of 90 kg. It can be treated as a disk
which rotates about the center. A. Sketch the situation, label variables, and collect known quantities. B. What is the moment of inertia of the merry-go—round? C. If two 19 kg children are riding on the merry-go-round at the outer edge, what is the total moment of
inertia? D. What is the total moment of inertia if the children move to positions halfway to the center of the
merry—go-round?

b) Moment of inertial of the merry-go-round will be I d = 4 9 . 6 1... View the full answer

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